GB872309A - Improvements in and relating to tachometer signal generators - Google Patents

Improvements in and relating to tachometer signal generators

Info

Publication number
GB872309A
GB872309A GB1621358A GB1621358A GB872309A GB 872309 A GB872309 A GB 872309A GB 1621358 A GB1621358 A GB 1621358A GB 1621358 A GB1621358 A GB 1621358A GB 872309 A GB872309 A GB 872309A
Authority
GB
United Kingdom
Prior art keywords
stator
windings
polepieces
input
stators
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1621358A
Inventor
Derek Norman Collins
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
S Smith and Sons Ltd
S Smith and Sons England Ltd
Original Assignee
S Smith and Sons Ltd
S Smith and Sons England Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by S Smith and Sons Ltd, S Smith and Sons England Ltd filed Critical S Smith and Sons Ltd
Priority to GB1621358A priority Critical patent/GB872309A/en
Publication of GB872309A publication Critical patent/GB872309A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/49—Devices characterised by the use of electric or magnetic means for measuring angular speed using eddy currents

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Synchronous Machinery (AREA)
  • Superconductive Dynamoelectric Machines (AREA)

Abstract

872,309. Induction generators. SMITH & SONS (ENGLAND) Ltd., S. May 19, 1959 [May 20, 1958], No. 16213/58. Class 35. In a tachometer signal generator comprising two stators 12, 14 provided with windings 15 . . . 17 and having their polepieces 11a &c., 13 &c. disposed on opposite sides of an electricallyconducting body 10 mounted for rotation relatively to the stators and drivable by a device whose speed is to be measured, one stator 12 has twice as many polepieces as the other stator 14, those of the stator 12 are arranged in pairs, e.g. 11a, 11b with a winding, e.g. 15 embracing each pair, and each polepiece, e.g. 13b of the other stator 14 is disposed opposite two adjacent polepieces, e.g. 11b, 11c of two pairs of polepieces of the stator 12. When the input stator windings are fed with alternating current and the body 10 is stationary there is negligible linkage of input stator magnetic flux with the output windings and when the body 10 is rotated a path 19 for magnetic flux produced by eddy currents is provided linking the input stator and output windings. As shown, the body 10 is a cylindrical aluminium drag cup, the stators 12, 14 form the respective input and output members, and the windings of each stator are connected together either in series or parallel. Specification 618,003 is referred to.
GB1621358A 1958-05-20 1958-05-20 Improvements in and relating to tachometer signal generators Expired GB872309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1621358A GB872309A (en) 1958-05-20 1958-05-20 Improvements in and relating to tachometer signal generators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1621358A GB872309A (en) 1958-05-20 1958-05-20 Improvements in and relating to tachometer signal generators

Publications (1)

Publication Number Publication Date
GB872309A true GB872309A (en) 1961-07-05

Family

ID=10073213

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1621358A Expired GB872309A (en) 1958-05-20 1958-05-20 Improvements in and relating to tachometer signal generators

Country Status (1)

Country Link
GB (1) GB872309A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3538364A (en) * 1968-01-30 1970-11-03 Cem Comp Electro Mec Rotary electrical machine of direct or alternating current type
WO2001061363A1 (en) * 2000-02-18 2001-08-23 Hübner Elektromaschinen AG Device for generating signals that are dependent on rotational speed

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3538364A (en) * 1968-01-30 1970-11-03 Cem Comp Electro Mec Rotary electrical machine of direct or alternating current type
WO2001061363A1 (en) * 2000-02-18 2001-08-23 Hübner Elektromaschinen AG Device for generating signals that are dependent on rotational speed

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